<!doctype html>
<body>
  <script src=/resources/testharness.js></script>
  <script src=/resources/testharnessreport.js></script>
  <script src=/common/utils.js></script>
  <script src=/fenced-frame/resources/utils.js></script>
  <script src=/shared-storage/resources/util.js></script>
  <script>
    async function
      test_shared_storage_writable_iframe_request_in_sandboxed_iframe(
      test, key, value, sandbox_flags) {
      // Create sandboxed iframe.
      let frame = document.createElement('iframe');
      frame.sandbox = sandbox_flags;
      let url = new URL(
        '/shared-storage/resources/'
          + 'shared-storage-writable-iframe-request-'
          + 'in-sandboxed-iframe-inner.https.sub.html',
        location.href);
      url = appendExpectedKeyAndValue(url, key, value);
      frame.src = url;

      // We expect a message to bubble up via the sandboxed iframe.
      const promise = new Promise((resolve, reject) => {
        window.addEventListener('message', async function handler(evt) {
          if (evt.source === frame.contentWindow &&
              evt.data.sharedStorageWritableHeader) {
            assert_equals(evt.data.sharedStorageWritableHeader, '?1');
            document.body.removeChild(frame);
            window.removeEventListener('message', handler);
            resolve();
          }
        });
        window.addEventListener('error', () => {
          reject(new Error('Navigation error'));
        });
      });

      // Navigate and wait for notification.
      document.body.appendChild(frame);
      await promise;

      // Verify that the value has been set.
      await verifyKeyValueForOrigin(key, value, location.origin);

      // Clean up and finish.
      await sharedStorage.delete(key);
      test.done();
    }

    async_test(t => {
      test_shared_storage_writable_iframe_request_in_sandboxed_iframe(
        t,
        /*key=*/'a',
        /*value=*/'b',
        /*sandbox_flags=*/'allow-scripts allow-same-origin');
    }, 'test sharedStorageWritable iframe request in sandboxed iframe with '
         + '"allow-same-origin"');

    async_test(t => {
      test_shared_storage_writable_iframe_request_in_sandboxed_iframe(
        t,
        /*key=*/'c',
        /*value=*/'d',
        /*sandbox_flags=*/'allow-scripts');
    }, 'test sharedStorageWritable iframe request in sandboxed iframe without '
         + '"allow-same-origin"');
  </script>
</body>
